@asasan: sorry for my missing asasan I had to reinstall ubuntu on my laptop...now I'm here again

well, you've to change owner.group in your file from root to users (group).
Main problem is that you cannot do that in /home...directory because for fat/ntfs filesystem microsoft compatibility, files inside this directory cannot changed.
So, try to copy your file in /usr
command in terminal is
cp your_file /usr
ignore error, it's possible you'll copy this file in /usr despite error log
verify this copy:
cd /usr
ls
if you can see your file here now it's easy:
sudo gainroot (if you haven't this command istall it rootsh from repos)
chown user:users your_file (be careful, don't forget the "s" in 2nd users, it's important )
exit
verify if everithing worked well
ls -l your_file
you'd see
-rw-r--r-... 3 user users ...
well, if "x" missing digit:
chmode +x your_file
check again
ls -l
if everithing is ok now (user users and "x" presents)
mv your_file /home/user/.stardict/dic
that's (should be :P) all


I'm waiting for your news...